Leg units for knockdown chairs



pt. 9, 1958 c. P. MOLLA 2,851,091

LEG UNITS FOR KNOCKDOWN CHAIRS Filed March 12, 1956 INVENTOR. CHHR LES PMOLLQ ATTORNEY LEG UNITS FOR KNOCKDOWN CHAIRS {Charles P. Molla,Westbury, N. Y.

Application March 12, 1956, Serial No. 570,847

1 Claim. (Cl. 155-196) This invention relates to knockdown metal chairs.More particularly, the invention deals with a chair structure, whereinthe back legs and front legs are made in leg unit assemblages,simplifying packaging and ultimate assemblage of the chair with a seatframe for support of the let units in spaced relationship to each other.

Still more particularly, the invention deals with a chair structure ofthe character described, wherein the separate parts of each leg unit arewelded together and, wherein, the welds are recessed in order to provideflush surfaces for engaging adjacent surfaces of supports or articlesmounted thereon.

The novel features of the invention will be best understood from thefollowing description, when taken together with the accompanyingdrawing, in which certain embodiments of the invention are disclosedand, in which, the separate parts are designated by suitable referencecharacters in each of the views and, in which:

Fig. l is a perspective view, diagrammatically illustrating a pair ofleg units and indicating, in dot and dash lines, a seat frame arrangedupon and indicating the spacing of the leg units one with respect to theother; and

Fig. 2 is an enlarged detail sectional view of one corner portion of oneof the leg units.

In Fig. 1 of the drawing, I have shown a knockdown chair composed of aback leg unit and a front leg unit 11. The back leg unit comprises twosimilar leg members 12, 12', to the lower ends of which are weldedenlarged feet 13, 13', one of these feet and a part of the leg beingshown in section in Fig. 2 of the drawing to indicate a recessed weld 14in making the assemblage, the weld extending into the lower surface ofthe leg, as diagrammatically shown. This construction provides a flushlower surface 15 on the foot to engage any supporting surface upon whichthe leg is arranged.

At 16, 16 I have shown a triangular bracket, which is welded, as seen at17, to the upper edge of the leg in a manner to dispose the triangularbracket with side edges in the position indicated in Fig. 1 of thedrawing. The bracket 16 includes spaced apertures 18, 18 for receptionof bolts, or other fasteners, in coupling a rectangular seat frame 19therewith, the frame being indicated in dot-dash lines in Fig. 1 of thedrawing for the reason that this frame forms no direct part of thepresent invention and is indirectly shown to simply illustrateassemblage of the two leg frames 10 and 11.

The rear legs 12, 12 have welded thereto, as seen at 20 in Fig. 2 of thedrawing, an upwardly extending backrest portion 21, which can be curvedor shaped to provide the desired contour and part of this backrestportion only is indicated in Fig. 1 of the drawing and one PatentedSept. 9, 1953 IQC of the lower crossbraces 22 of the backrest portion isshown. This construction simplifies the production of leg frame unitsand enables the manufacturer to modify or change the structure andcontour of the backrest portion, which is welded to the legs 12 in themanner defined.

The front leg unit 11 comprises two legs 23, 23 which, for the exceptionof the curvature thereof, are generally similar to the legs 12, 12' andinclude feet 24, 24' at the lower ends thereof, similar in all respectsto the feet 13, 13. Welded to the upper ends of the legs 23, 23' aretriangular brackets 25, 25', similar in all respects to the brackets 16,16' and again arranged in such manner as to adapt the same for mountingon the frame 19, as diagrammatically illustrated in Fig. 1. The legmembers 23, 23 are integrally united by a crossrod 26, in cludingornamental rod portions 27, 28, which are welded to the leg members, sothat the entire assemblage constitutes the leg unit 11, which, whendetached from the rest of the chair assemblage, such for example as theseat frame 19, can be conveniently packed for shipment, together withthe leg unit 10.

With articles of the type and kind under consideration, it has beencustomary to provide four independent leg members, which were attachedto a seat frame with means for attaching a backrest portion to the legmembers. By providing the unit assemblages 10 and 11, not only ispackaging simplified, but the final assemblage of the chair ismaterially simplified, first, in providing a definite positioning andspacing of the leg members one with respect to the other in each unitand, further, by simply placing the seat frame on the leg members, asdiagrammatically illustrated in Fig. 1, preparatory to attaching theseveral fastener devices which are employed.

Furthermore, a leg structure of the type and kind defined produces astrong and durable chair structure and effects a saving in the cost ofproduction, particularly in modifying certain characteristics of thechair, such as the backrest portion, or the front bracing and ornamentalportion of the front leg unit 11.

Having fully described my invention, what I claim as new and desire tosecure by Letters Patent is:

In knockdown metal chairs of the character described, a rear dual legunit and a front dual leg unit, each unit comprising a pair of similarlegs, the legs of each unit having enlarged flat disc-like feet at thelower ends there of with countersunk welds extending into the ends ofsaid legs, the upper ends of the legs of each unit having triangularbrackets welded thereto by recessed welds extending into the upper endsof the legs and leaving fiat upper surfaces on said brackets, saidbrackets being apertured for attachment of a rectangular frame thereto,means on each leg unit spaced with respect to said brackets joining andrigidly spacing the legs of said units, and said means of the front legunit comprising a crossrod arranged in spaced relation to upper andlower ends of the legs of said unit.

References Cited in the file of this patent Streng Aug. 25,

